Home / 1,238,201.32-1,707,959.37-819,091.96

Finding the Fourth Proportional to 1,238,201.32, 1,707,959.37 and 819,091.96

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Solution

The fourth proportional to 1,238,201.32, 1,707,959.37 and 819,091.96 is: 1,129,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,201.32 : 1,707,959.37 = 819,091.96 : x
  2. Step 2: Convert to fraction form
    1,238,201.32/1,707,959.37 = 819,091.96/x
  3. Step 3: Cross multiply
    1,238,201.32x = 1,707,959.37 × 819,091.96
  4. Step 4: Simplify right side
    1,238,201.32x = 1,398,975,787,973.67
  5. Step 5: Solve for x
    x = 1,398,975,787,973.67/1,238,201.32
  6. Step 6: Final answer
    x = 1,129,845.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.